Volumetric flask



FIG. 1 is a perspective view of a volumetric flask showing my newdesign;

FIG. 2 is a front elevation view thereof;

FIG. 3 is a back elevation view thereof;

FIG. 4 is a left side view thereof;

FIG. 5 is a right side view thereof;

FIG. 6 is a top plan view thereof; and,

FIG. 7 is a bottom plan view thereof.

The broken lines in the drawing views represent environmental structureof the volumetric flask and form no part of the claimed design.

CLAIM The ornamental design for volumetric flask, as shown anddescribed.